Sparking plug.



UNiTED STA ree i A Enza" oii if ion.-

j WILLIAM A. IINIG, or JACKSONVXLLE, FLORIDA. i I Y l SPARKING PLUG.

,i f Y. fr f y i $68,333. l SpelhC-fwn Letters Paterlnteiitetl Aug. 23, 1910. i Application lerl Haren 1 19GB. Serial No. 480.541. s i i i l hay l t i l l i o a ju ni i-tfmg, LUH-Lfffi Shoulder l2 engaged h v a cup nut lll screwed Be it known thitl, :Luni L iNrG, on said end of the- .'isin Q Between the end' s a citizen of the Lnited Suites. reidxng ut l ofv the mining :nul the boulder l2 is placed i Jtieksonville. in the county of Duval :ind a washer 15. 'Extending uxially through 60 .1 u y 5 State of lloridu. lnive ovvi-ted u new. and l the core 1l is :i rod or wirel 16 which screws i. -Y uneful biinrlring lvlug, of ywhich the follow it one end partly into the cap threaded bore .3 r1 ing is u specification. i through the cup lo. whereby --niil cup is held This invention relate-.s to sparking plugin i ugn'um iheinuer cud of the core; and on the used in internal combustion engines for i other .-nil ot' the rod or wire isScrewed :i 65 v niting the charge in the enginecylinder.undi mit. 1T which lamps :i clip 18 :igrninst the i the object of the present invention is to outer euri ot' the core., said clip sei-ving :is :i provide an iffnition device of this kind which ,-onueriiou for the wire lil with the plug. 4is highly ellicient in notion, and devoid of 'The vleetrode .lis n short piece of non-corff Ycomplicated parts; and also to provide ,a mehr wire known to the trade as meteor 70 l5v structure in which deposits of soot und other i' wir. und it screws into the outer end of the matter on the. clectrodee` is ettcctuiilly prethreaded hoi-e in the cup 1t). The outer end i,feiited, the electrodes being self-cleaning u2' this wire stands between and is guarded lVitli the foregoing objects in View, the f hy said luge S and extends into close protinvention consists in a novel construction? imity to the wire 7, where the latter'is 75 and arrangement of parts for `permitting howl-d Slightly in a direction away from the the udjustnfient` of the relativeposition of.y forint-r. i Y -tlie elcci'trodesraiul for guarding hoth from 'l`lu-l electric current passes along the rod injury, as will he. hereinafter described und or wire lt from the riip 1S und wire 19 and claimed, reference living luid to the' draw-l into the rap. und from the cup 10`to the 50 ing hereto annexed in whicht-lwlnule. tl. lt then jumps or sparks acros:v

Figure l is :in elevation of the plug. Fig. 'l the gap between huid cli-etrode :ind the elec- 2 :i central,longitudinal section. Fig. l. trotlei' sind paeses through t'lieenSingjl to is :in end view. 1 the engine cylinder in the usual manner.

@In the drawings 5 denmenv the contlueing Normally the parts will stand about as 85 casing which carries one electrode :ind is shown in Fig. but itis obvious that the also constructed to support the other elec- 1 meteor wire electrode can be adjusted longitrode. The easing i?- pieleruhlyy n 'brass tudinallv h v screwing it into or out of the shell. and is opt-n at both ends. luterniei threaded horc in thecap 10, and when addinte its ends, vthe shell threaded exterjustell, the. rod 16 can be screwed farther 90 nnlly :is indicated at. 6 :ind made angular into Suid cup until it hears on the upper end near the threads as :it 14 for attachment to of the electrode 9 and thus serves as would a the engine cylinder. 'lhzit end of the coni juni uut to prevent the electrode from beductingengineA which extends into the en f coming loofe in the i;-:ip,:ind when the nut'. 17 gine cylinder is rounded olf or dunne shui-ed i i; again tightened the rod will be held 95A 40 "und provided with dianietriczill)` opposite against nuirenient through the core 11. vOrlug 8 projecting beyond its hotly, and across i dinnrily adj ustincnt of the electrode nearer the opening at this end, extends zi tine platinum wire 7 which is in electrical connection with the casing und serves :is one of the :ind that adjustment is also possible with the electrodes of the plug. The nire issecurcd pre-:eut construction vhcciimie the washer 15 at its ends to and guarded from injury h v might be compressed or replaced by a the lugs H, und hows outward between them thinn'clone; hcnee my iinprovetl construc :is shown, so :is to permit expansion :unl f tion o parts provides for two adjustments,

the platinum from time to time is etfected hy.' forcing the core further into the casingylgm contraction without injury. The other eleei and either or hoth muy he employed. 105 trode of the plug is n short section of wire. A sparking plug constructed iis herein de- 9 which is screwiwl into a metnllic cap 10 ut. scribed Ican cheaplv manufactured. and

the end of a co'rc 11 of insulatingmaterial the parts can be'reiidil'y assembled. There such as mic-n. The core 'extends into the arc uncomplicated partsto get out of order, no V sind the plug will therefore he efficient and reliable in :it-tion. The exploding charges heat the plutinuln wire 7 to a red heat which i casing from thut cud thereof which is on the outside of the c tjlinder. und :xdj'teeut Said end'itl has on the autr-aule thereof :i

bums otf allv grease and cl'irhon vrdeposits at every explosion, thereby keeping,r the electrode absolutely clean and preventing de posits cf soot thereon.' What is claimed is: 'A Spark plu" comprising a tubular con ducting casing iaving a dome-shaped inner."

end und dizuuetieal opposite lgs pro- .jectinr therefrom, a platinum electrode cnnnectent its extremities tosnid lugs, an insulatingmrc within the caSing, :m axial rod .through the core und having threaded projecting ends, a nut. and circuit wire engaging its outer end, n conducting cap against the-inner end of the cere and having a threaded bore completely throu h it partly engaged by the inner endof sai `rod, and a "with t e second electrode hating its outer end 'er tendm between said lugs into proximity i end three ed and adjustahiv engaging the bore of said cap, whereby after setting this electrode therein said rod 'can be screwed end of snit! electrode 'for the pnrpom set 2 forth. v l K I n teqtnnonjt' that I claim the foregoing :Le

-my own, I have herr-tn affixed mj.' signature in the preSenf'e of two witnesses.

VILLTABI A. ENIG.

Yi tnesses l R. L. Comix, H. G. SILBERBBBG.

atinnm Aeieren-ode anr its; inner .farther into the cap to iam upon the innerv f 

